Who is the queen youngest child?

Answer 1

It depends what you count as modern. Mary Queen of Scots (1543, which is roughly counted as around the beginning of modern history) became queen before her first birthday, her Father died when she was six days old and her coronation took place when she was six months old. But there was a legal age for ruling a country, just like driving and drinking today so until that age, a young monarch would have someone to rule for them

Answer 2

I don't know, the best i can think of is Mary, the Queen of Scot.

She was six days old when her father died and she was crowned nine months later.

This is preety hard record to beat, unless there's some girl that was crowned the moment she was born, or married the moment she was born due to political arrangement.

Answer 3

Mary Stuart, became Queen of Scotland when she was only 6 days old

Answer 4

Edward